
The AirTAC MIJ Adjustable Cylinder MIJ40X450-100S is a genuine double acting, double rod, adjustable stroke round-body mini air cylinder with a Ø40mm bore and 450mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
Dial in a precise forward end position on the fly with the AirTAC MIJ40X450-100S, a round-body stainless steel mini cylinder built for heavy-duty pneumatic tasks. A built-in piston magnet (-S suffix) enables seamless integration with CMSG, DMSG, or EMSG reed and electronic switches for end-of-stroke confirmation.
The external stop screw allows you to shorten the extend stroke by up to 100 mm on-site, giving you a usable forward range of 350-450 mm without changing the cylinder. The 1/4" port and M12x1.25 male rod thread ensure robust fluid and mechanical connections, while fixed TPU bumper pads absorb impact at the stroke ends.
| Model | Airtac MIJ Adjustable Cylinder MIJ40X450-100S |
|---|---|
| Series | MIJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G. Note: the Ø40 bore is a larger, non-ISO-6432 size.
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
MIJ / MICJ are double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
| MIJ | round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -100 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (double rod, adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Secure large castings during machining by dialing the extend stroke in by up to 100 mm to accommodate varying part dimensions while applying 628.3 N of clamping force.
Act as an adjustable physical stop for heavy pallets on a line, fine-tuning the blocking position on-site without needing to swap out the entire cylinder assembly.
Push heavy cartons onto diverter chutes at varying angles, using the adjustable forward end position to manage different box sizes without retooling the station.
The 100 mm adjustment window is ideal for absorbing mechanical tolerances or staging multiple forward stops from a single part number. Keep in mind the stop screw only trims the extend end; it is not a mid-stroke lock. If the application requires holding a load during air loss, you must add an external rod lock or pilot check valve, as the piston will drift. Mounting options include LB foot, FA flange, and TC trunnion brackets (SDB pivot blocks are not available for this adjustable variant).
Quick checklist
This Ø40 mm bore cylinder features a 1/4" air port and an M12x1.25 male rod thread. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external stop screw allows you to shorten the extend stroke by up to 100 mm on-site, providing a usable forward range of 350-450 mm from the 450 mm nominal stroke. The retract stroke remains full. Note that this only sets the end position; it does not lock the piston mid-stroke. The -S suffix indicates a built-in magnet for position sensing.
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